Loose-leaf binder.



C. JL ROBLEY. LOOSE LEAF BINDER. APPLICATION FILED DEO. a1. 1910.

1,052,179.l Painted Feb.4,1913.

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-UniTED STATES PATENT' orrron.

CHARLES J'. BOBLEY, OF MILWAUKEE, WS'CONSIN.

LOOSE-LEAF BINDER.

To all lwhom t may concern.'

Be it known that I, CHARLEs J. RoBLEr, a citizenv of the United States, residing in' Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Loose-Leaf Binders, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relates to improvements in loose leaf binders and more particularly to that class in which the covers are provided with telescopingtubular clamping posts which are adapted to engage the leaves and to clamp the leaves between the cover scctions.

It is one of the `objects of the invention 'to provide a simple inexpensive binder whichis eflicient in operation and may be easily and quickly adjusted to insert or remove leaves from the binder.

A further object of the invention is to provide a binder in which the covers may be clamped or released from clamping engagement with the leaves by a slight turn of the telescoping clamping posts.

A further object of the invention is to provide telescopin tubular clamping posts which maybe use in connection with ordinary separable covers by providing said covers with openings for the insertion of said posts.

A further object of'the invention is to provide the posts with means for automatically locking the post members together in Aadjusteflmpositions and to ,prevent the acci@ dental ocking thereof. l

With the above, and other objects in view, the invention consists of the improved binder, its parts and combinations as set forth in the claims, and. all equivalents thereof.

In-the accompanying drawing in which the same reference characters indicate the same parts in all of the views, Figure 1 is an enlarged sectionalview of va portion of a binder provided with the improved clamping posts, the posts being shown partly in section and in an unlocked position; Flg. 2

` is a' similar view thereof with the posts in locked position; Fig.. 3 is a similar view thereofwith the posts shownin full line;

Fig. 4 is a horizontal sectional view of the binder taken on 1i11e14`4 of Fig. 2; Fig. 5 a horizontal sectional view of the posts speeieatien ef :Lettersraamt. Application led December 31, 1910. Serial No. 600,259.

-of the lower tubular member.

taken on line 5-5 of F ig. 1; Fig. '6 is an inverted plan view of the upper post; and Fig. 7 is a top View of the collar which surrounds the upper posts.

Referring to the drawing the numeral10 indicates the extensible covers between which the removable leaves 11 are positioned and clamped and through'which the telescoping members 12 extend. Each'cover is formed of two parts connected together by a flexible hinge 13 to permit the opening Patented Feb. 4., 1913.

of the book and the leaves are prov-ided with Aopenings and slots 14 leading therefrom to' the rear edges of the leaves to permit the removal or the insertion ofthe leaves when the covers are released from clamping engagement therewith.

The clamping members consist of a lower tubular member 15 which extends upwardly through an opening provided in the lower cover and an upper bolt member 16 which depends downwardly through an openingprovided in the upper cover and into engagement with the lower tubular member.

The lower tubular member has a head 17 on its lower end which is fastened to the lower cover by rivets 18 and the tubular portion of the member is provided with inwardly extending threaded portions 19 positioned diametrically opposite with relation to each other and each portion being of a width approximately one quarter of the diameter ofthe bore of the member. The un.-

threaded .portions of the tubular member -be-v tween the 'threaded portions form vertical longitudinal slots 20 also diametrically oppositely positioned and of about the same circumferential width as the threaded pore tions 19. The upper bolt member 16 which extends downwardly through an opening provided in the upper Vcover is threaded throughout its length to t the threadedl H,portions 19 of the lower tubular member Yand is slabbed or flattened on opposite sides as indicated by the numeral 22 so that the' cover carries a head or enlargement23 rig# vcircumferential width of the threaded edge i idly riveted thereto by means of which the Y boltis turned into locked or unlockedl enga ement with the lower member.

sleeve 24 depending from the enlargement surrounds and is spaced a distance from the threaded'bolt 16, is adapted to telescope closely over the tubular portion of the lower member and serves to hold the leaves of the book properly positioned between the covers and prevents 'the leaves rom coming in contact with the threaded portions of the bolt. 4

A collar 25 surrounding the sleeve and rigidly fastened to the upper surface of the upper cover is provided with one or more notches or recesses 26 into which a tooth 27 formed on thelower surface of the enlargement 23 enters when the bolt is moved into locked engagement with the threaded portion of the lower member.

While only one clamping member is shown it is to be understood that two or more are used to clamp the covers together.

The clamping members areadapted to be used in connection with covers of di'erent kinds as it is obvious'that it is only necessary to perforate the covers to accommodate the clamping members.

When in open position the leaves are positioned betweenI the covers with the openings of the leaves in register with the clamping posts. The bolt members which are in unlocked positions with their threaded portions extending into the longitudinal slots are pressed downwardly to tightly clamp the leaves between'the covers and the bolts are then turned a one quarter turn into engagement with the threaded portions of the lower tubular members. This movement will cause a further clamping of the covers and the teeth of the enlargements to snap into the recessesf of the collars and the parts willbe in locked'positions.

When it is desired to release the covers the operation is reversed.

From the foregoing description. it will be seen that the binder is very simple in construction and operation and consistsof `a minimum number of parts.

- What I claim as my invention is 1. A clamping means for a loose leaf binder, comprisingxa tubular member hav- -ing .internal inwardly extending portions pos1t1oned onv opposite sldes of the threaded member and forming longitudinal slotted portions therebetween, and a threaded 'bolt having opposite side portions free of threads to ermit the bolt to be inserted into thev tu ular member without turning either member, said threaded portions of the bolt entering the longitudinal slots and engaging the threaded portionsl of the tu- .bular member when the bolt is turned a notaire ot the bolt engage the threads ot the tubular member.,

2. A clamping means for a. loose leaf member when the bolt is turned a partial revolution, an enlargement provided on the outer end ofthe threaded bolt, a sleeve dependngfrom the enlargement and telescoping over the tubular member, and a stationary collar surrounding the sleeve, and having a'tooth and recess means formed between the collar and the enlargement for locking said parts together when the threaded portions of the 'bolt engage the threaded portions of the tubular member. 3. A loose leaf binder, comprising an up- :per and a lower cover having openings provided therein, a tubular member extending fthrough the openingof the lower cover and having a head formed thereon which is I:rigidly fastened to the cover, said tubular member having internal inwardly extending threaded portions positioned on opposite sides of the member and forming longitudinal slotted portions therebetween, a

collar rigidly connected to the upper cover, 4

together, and a sleeve carried bythe bolt` and extending through the collar, and telescoping over the tubular member, said bolthav-ing opposite side portions free .of threads to permit lthe bolt to be inserted into the tubular member without being a, threaded bolt extending through the col- Y turned, said threaded portionsof the bolt. f

CHARLES J, roster.

Witnesses: v c. n. mmm,

LA A. 

